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This extended LTC meeting will address topics related to the commissioning of LHC with beam to an intermediate energy. Sessions will include cold check-out without beam and the readiness of the machine systems to operate with beam.
Friday 14 March
14:00 - Main Auditorium
Summing-up of meeting
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Monday, 3 March 2008
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08:30
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Strategy
(30')
Slides
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Steve Myers
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- Achieve circulating beam as soon as we have a cold and minimally commissioned machine.
- Commission with beam to demonstrate that the machine is viable (captured beam and 1 hour lifetime).
- The first run for physics.
- The fall back solution:
- One or more sectors require a major repair and have to be warmed up.
- Sector test from one side or both on several healthy sectors while the repair is ongoing – access ? Or time sharing the week.
- The energy strategy.
- Schedule
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09:00
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HWC– where are we?
(20')
Slides
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Roberto Saban
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The major non-conformities encountered, the ongoing work, repairs, etc. (PIMs, connection cryostats, coupling between bus-bars, water cooled cables and flexible connections, etc.). The planning for the coming months.
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09:20
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Overview of the commissioning of 45
(20')
Slides
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Bellesia Boris
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- Where we come from (a recall of sector 78)
- What was achieved in sector 45: number of circuits, energy of the presently commissioned sector 45,
- how much more do we need for a reasonable energy level
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09:40
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Issues arising from review and HW commissioning strategy over the coming months
(20')
Slides
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Rudiger Schmidt
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o safety, access, resources (qps, interlocks, power converters, MPP, controls), availabilty of systems, etc
o Lessons from sector 4-5
o Parallelism between HWC and machine checkout (partial & full) – resources, expertise, limits
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10:30
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HW commissioning to intermediate energy
(35')
Slides
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Antonio Vergara-Fernandez
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o How can we achieve a machine commissioned for beam operation for mid June?
o Objectives, advantages of HWC to intermediate energy.
o How much time can we gain?
o Can we achieve a commissioned machine for intermediate energy by mid-June? Critical issues for that?
o Is there a safe limit to operate the magnets and the cryogenics for cold check-out, early physics?
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11:05
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Access System
(30')
Slides
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Magali Gruwe
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o What is going to happen in the next 6 months?
o Present experience
o Closure of ring, preparation, qualification etc.
o Prerequisites, EIS…
o Access during a sector test
o Is the access system ready for HWC in parallel to a sectorized cold-check out in parallel to HWC and experiment preparation?
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11:35
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Experiments during HWC, beam tests and initial commissioning
(30')
Slides
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Massimiliano Ferro-Luzzi
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o What are the experiments going to do from March to the first collisions
o Can they leave with controlled access in the experimental areas in parallel with HWC and Cold-Check-out
o Impact of a Sector test
o How interested are the experiments in a run at intermediate energy?
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14:00
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Preparation for Beam commissioning
(35')
Slides
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Mike Lamont
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o Plans for preparation for beam commissioning, dry runs, system commissioning, machine protection commissioning, partial cold checkout, full machine check out.
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14:35
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Cryogenics towards operation
(35')
Slides
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Serge Claudet
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o How to operate up to 8 sectors together.
o Recovery after a quench: how much time does it take? Is expert intervention required? How can this be improved?
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as nominal
o Alarms/signals/SW available in CCC
o Piquet/Experts availability
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15:10
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Magnets & QPS towards operation
(35')
Slides
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Nuria Catalan Lasheras
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o How to operate up to 8 sectors together
o Recovery after a quench: how much time does it take? Is expert intervention required? How can this be improved?
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as nominal
o Alarms/signals/SW available in CCC
o Piquet/Experts availability
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16:15
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Vacuum
(35')
Slides
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Jose Miguel jimenez
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o Breakdown of tests foreseen in preparation for beam
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified
o Issues for sectorized cold check-out in parallel to HWC
o Alarms/signals/SW available in CCC
o Piquet/experts availability
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16:50
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Injection/Beam Dump and Protection Devices
(35')
Slides
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Brennan Goddard
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o Breakdown of tests foreseen in preparation for beam
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified
o Piquet/Experts availability
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Tuesday, 4 March 2008
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08:30
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RF
(35')
Slides
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Olivier Brunner
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o Breakdown of tests foreseen in preparation for beam (including damper, synchronization signals and pre-pulses, RF instrumentation)
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified
o Piquet/Experts availability
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09:05
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Beam Instrumentation
(40')
Slides
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Jean-Jacques Gras
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o Breakdown of tests foreseen in preparation for beam
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified
o Piquet/Experts availability
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10:15
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Collimators
(35')
Slides
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Oliver Aberle
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o Breakdown of tests foreseen in preparation for beam
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified
o Piquet/Experts availability
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10:50
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Machine Interlocks
(35')
Slides
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Alick Macpherson
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o Breakdown of the QA tests foreseen in preparation for beam
o Equipment folder: tests results, handling of non-conformities, performance below specs, machine as commissioned vs. machine as specified
o Piquet/Experts availability
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14:00
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Options for possible sector test
(45')
Slides
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Mike Lamont
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- motivation
- options (injection point 8, injection point 2)
- prerequisites
- test outline, planned total intensities
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14:45
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Radiation Protection implications of possible sector test
(30')
Slides
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Doris Forkel-Wirth Helmut Vincke
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- precautions before test, during test
- survey, zonage
- requirements after test
- tunnel, experiments
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15:45
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Stopping the beam in a possible sector test
(30')
Slides
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Stefano Redaelli
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- point 7
- colimators, point 6
- beam dump
- point 3, point 4
- radiation levels
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16:15
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Proposed tests with beam
(45')
Slides
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Massimo Giovannozzi
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- run trough list,
- priorities,
- intensities
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17:00
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Quenches with beam
(30')
Slides
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Ralph Assmann
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- Motivation
- Sector test, with circulating beam
- Method, dangers, intensities
- will HWC/MPP approve???
- Interference
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Wednesday, 5 March 2008
Thursday, 6 March 2008
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08:30
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LHC optics
(40')
Abstract
Slides
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Thys Risselada Marek Strzelczyk
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Data base implementation in LSA. Procedures for uploading optics versions in to the LHC. Overview of the provided optics versions.
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09:10
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LHC Aperture
(35')
Slides
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Stefano Redaelli
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Aperture model for the LHC. Summary of known aperture bottlenecks (e.g. Q2) and their documentation in the CCC. Procedures for the safe measurement of aperture in the LHC.
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09:45
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Beta beating, coupling, and dispersion
(35')
Abstract
Slides
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Rogelio Tomas Garcia
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Procedures for measuring for verifying the optics in the LHC. Summary of correction algorithms and their implementation in LSA.
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10:50
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11:25
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Tune and Chromaticity correction
(35')
Slides
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Ralph Steinhagen
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Commissioning strategy for the tune and chromaticity correction systems. Options for feed back loop on tune and chromaticity.
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14:00
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14:35
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15:40
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Verification of the Beam Loss studies at start-up
(35')
Slides
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Laurette Ponce
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Procedures for calibrating loss patterns. Operational scenarios given measured BLM losses. Threshold adjustment and masking disabling during operation.
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16:15
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MADX online model – Part 1
(25')
Slides
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Frank Schmidt
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Basic tasks and options. Implementation
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16:40
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MADX online model – Part 2
(25')
Slides
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Werner Herr
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Integration into the LSA software and application of online MADX to operation
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Friday, 7 March 2008
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08:30
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Databases
(30')
Slides
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Chris Roderick
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DB cluster introduction
New DB organization (LSA DB, Logging DB, Measurement DB, …)
Performance issues (all databases)
Logging DB: data rates – what is acceptable vs. what is expected
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09:00
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LSA Core
(30')
Slides
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Grzegorz Kruk
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Introduction (scope, high level architecture)
Settings organisation for LHC
Transactions (FGCs, FESA)
Republication of information from LSA to DIP
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09:30
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LSA & Safety
(30')
Slides
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Verena Kain Wojtek Sliwinski
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Introduction (motivation for RBAC and MCS)
What’s involved in making a property critical?
How we manage maintenance of RBAC roles and MCS definitions?
How do we ensure that configuration in LSA DB is in sync with Front-end?
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10:30
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Sequencer
(30')
Slides
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Reyes Alemany Fernandez
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Experiences from HWC
Current functionality and functionality which is missing for the first beam.
Sequence creation/edition – who and how?
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11:00
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Timing
(30')
Slides
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Julian Lewis
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HW status.
Timing tables, telegrams, interface form LSA
Injection cycling/filling scenario overview
Post Mortem, XPOC events distribution
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11:30
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Applications
(30')
Slides
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Delphine Jacquet
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What’s needed, what’s there,
What’s missing and who is likely to do it (OP, CO, LAFS, BI)?
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14:00
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Magnet Modelling
(30')
Slides
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Nicholas Sammut
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Status of FIDEL in LSA.
How do we feed errors back into the model?
How do we feed a new model into LSA?
Magnet vs. circuit modelling.
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14:30
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Collimator control
(30')
Slides
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Michel Jonker (CERN)
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Readiness of collimators control – from bottom to top
State of automated collimator positioning
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15:30
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Machine Interlocks (BIS, WIC, PIC, FMCM & SMP)
(30')
Slides
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Bruno Puccio
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Hardware readiness and plans
State of the supervision
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16:00
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SIS (Software Interlock System)
(30')
Slides
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Jakub Wozniak
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Present readiness status.
Missing functionality – machine checkout and beam operations.
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16:30
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PM (Post Mortem)
(30')
Slides
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Markus Zerlauth
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HWC tools & evolution
Towards beam: tools, storage, triggering
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Friday, 14 March 2008
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